*{
    padding: 0;
    margin: 0;
}
.hea{
    width: 100%;
    height: 13rem;
    background: linear-gradient(to bottom, pink, white);
    margin-bottom: 20px;
}
.he{
    width: 100%;
    height: 5rem;
    line-height: 5rem;
}
.ha{
    width: 100%;
    height: 6rem;
    font-size:3rem;
    line-height: 6rem;
    display: flex;
    justify-content: space-around;
}
.bu{
    width: 20rem;
    height: 5rem;
    background:black;
    color:white;
    border-radius:5rem;
    font-size: 2rem;
    line-height: 5rem;
    text-align: center;
    margin:auto;
}